diff --git a/BauSystem_Main/src/de/steamwar/bausystem/region/Prototype.java b/BauSystem_Main/src/de/steamwar/bausystem/region/Prototype.java
index 2d627547..119fb49e 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/region/Prototype.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/region/Prototype.java
@@ -19,11 +19,9 @@
 
 package de.steamwar.bausystem.region;
 
-import de.steamwar.bausystem.region.flags.Flag;
 import lombok.Getter;
 import yapion.hierarchy.types.YAPIONObject;
 import yapion.hierarchy.types.YAPIONType;
-import yapion.serializing.YAPIONDeserializer;
 
 import java.io.File;
 import java.util.HashMap;
@@ -82,7 +80,9 @@ public class Prototype {
         }
 
         if (PROTOTYPE_MAP.containsKey(name)) {
-            Region.getRegion(PROTOTYPE_MAP.remove(name)).forEach(region -> region.setPrototype(this));
+            Region.getRegion(PROTOTYPE_MAP.remove(name)).forEach(region -> {
+                region.setPrototype(this);
+            });
         }
         PROTOTYPE_MAP.put(name, this);
     }
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/region/Region.java b/BauSystem_Main/src/de/steamwar/bausystem/region/Region.java
index aeea678b..b8478b6c 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/region/Region.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/region/Region.java
@@ -37,7 +37,10 @@ import yapion.hierarchy.types.YAPIONValue;
 
 import java.io.File;
 import java.io.IOException;
-import java.util.*;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
@@ -69,7 +72,7 @@ public class Region {
 
     private String name;
     private Prototype prototype;
-    private Set<Prototype> prototypes;
+    private Set<String> prototypes;
 
     private Point minPoint;
     private Point maxPoint;
@@ -115,7 +118,7 @@ public class Region {
         if (regionConfig.containsKey("prototypes", YAPIONType.ARRAY)) {
             regionConfig.getArray("prototypes").forEach(yapionAnyType -> {
                 if (yapionAnyType instanceof YAPIONValue) {
-                    prototypes.add(Prototype.PROTOTYPE_MAP.get(((YAPIONValue<String>) yapionAnyType).get()));
+                    prototypes.add(((YAPIONValue<String>) yapionAnyType).get());
                 }
             });
         }
@@ -136,9 +139,6 @@ public class Region {
             return;
         }
 
-        if (this.prototype != null && !prototypes.contains(prototype)) {
-            return;
-        }
         this.prototype = prototype;
 
         this.minPoint = point;
@@ -259,10 +259,7 @@ public class Region {
     }
 
     public void setPrototype(@NonNull Prototype prototype) {
-        if (this.prototype == null) {
-            return;
-        }
-        if (!prototypes.contains(prototype)) {
+        if (!prototypes.contains(prototype.getName()) && !prototypes.isEmpty()) {
             return;
         }
         generatePrototypeData(prototype, minPoint);